Merge branch 'for-upstream' of...

Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2019-09-06

Here's the main bluetooth-next pull request for the 5.4 kernel.

 - Cleanups & fixes to btrtl driver
 - Fixes for Realtek devices in btusb, e.g. for suspend handling
 - Firmware loading support for BCM4345C5
 - hidp_send_message() return value handling fixes
 - Added support for utilizing Fast Advertising Interval
 - Various other minor cleanups & fixes

Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/broadcom-bluetooth.txt

@@ -13,6 +13,7 @@ Required properties:
    * "brcm,bcm20702a1"
    * "brcm,bcm4330-bt"
    * "brcm,bcm43438-bt"
+   * "brcm,bcm4345c5"
 
 Optional properties:
 

drivers/bluetooth/btbcm.c

@@ -23,6 +23,7 @@
 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
+#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
 
 int btbcm_check_bdaddr(struct hci_dev *hdev)
@@ -73,6 +74,7 @@ int btbcm_check_bdaddr(struct hci_dev *hdev)
 	    !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
+	    !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
 		bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
@@ -332,6 +334,7 @@ static const struct bcm_subver_table bcm_uart_subver_table[] = {
 	{ 0x2122, "BCM4343A0"	},	/* 001.001.034 */
 	{ 0x2209, "BCM43430A1"  },	/* 001.002.009 */
 	{ 0x6119, "BCM4345C0"	},	/* 003.001.025 */
+	{ 0x6606, "BCM4345C5"	},	/* 003.006.006 */
 	{ 0x230f, "BCM4356A2"	},	/* 001.003.015 */
 	{ 0x220e, "BCM20702A1"  },	/* 001.002.014 */
 	{ 0x4217, "BCM4329B1"   },	/* 002.002.023 */

drivers/bluetooth/btqca.c

@@ -106,8 +106,9 @@ int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
 
 	bt_dev_dbg(hdev, "QCA pre shutdown cmd");
 
-	skb = __hci_cmd_sync(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
-				NULL, HCI_INIT_TIMEOUT);
+	skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
+				NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);

drivers/bluetooth/btrtl.c

@@ -178,6 +178,27 @@ static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
 	return &ic_id_table[i];
 }
 
+static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
+{
+	struct sk_buff *skb;
+
+	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+			     HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)",
+			    PTR_ERR(skb));
+		return skb;
+	}
+
+	if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+		rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch");
+		kfree_skb(skb);
+		return ERR_PTR(-EIO);
+	}
+
+	return skb;
+}
+
 static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
 {
 	struct rtl_rom_version_evt *rom_version;
@@ -186,19 +207,19 @@ static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
 	/* Read RTL ROM version command */
 	skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
-		rtl_dev_err(hdev, "Read ROM version failed (%ld)\n",
+		rtl_dev_err(hdev, "Read ROM version failed (%ld)",
 			    PTR_ERR(skb));
 		return PTR_ERR(skb);
 	}
 
 	if (skb->len != sizeof(*rom_version)) {
-		rtl_dev_err(hdev, "RTL version event length mismatch\n");
+		rtl_dev_err(hdev, "version event length mismatch");
 		kfree_skb(skb);
 		return -EIO;
 	}
 
 	rom_version = (struct rtl_rom_version_evt *)skb->data;
-	rtl_dev_info(hdev, "rom_version status=%x version=%x\n",
+	rtl_dev_info(hdev, "rom_version status=%x version=%x",
 		     rom_version->status, rom_version->version);
 
 	*version = rom_version->version;
@@ -242,7 +263,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 
 	fwptr = btrtl_dev->fw_data + btrtl_dev->fw_len - sizeof(extension_sig);
 	if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
-		rtl_dev_err(hdev, "extension section signature mismatch\n");
+		rtl_dev_err(hdev, "extension section signature mismatch");
 		return -EINVAL;
 	}
 
@@ -263,7 +284,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 			break;
 
 		if (length == 0) {
-			rtl_dev_err(hdev, "found instruction with length 0\n");
+			rtl_dev_err(hdev, "found instruction with length 0");
 			return -EINVAL;
 		}
 
@@ -276,7 +297,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 	}
 
 	if (project_id < 0) {
-		rtl_dev_err(hdev, "failed to find version instruction\n");
+		rtl_dev_err(hdev, "failed to find version instruction");
 		return -EINVAL;
 	}
 
@@ -287,13 +308,13 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 	}
 
 	if (i >= ARRAY_SIZE(project_id_to_lmp_subver)) {
-		rtl_dev_err(hdev, "unknown project id %d\n", project_id);
+		rtl_dev_err(hdev, "unknown project id %d", project_id);
 		return -EINVAL;
 	}
 
 	if (btrtl_dev->ic_info->lmp_subver !=
 				project_id_to_lmp_subver[i].lmp_subver) {
-		rtl_dev_err(hdev, "firmware is for %x but this is a %x\n",
+		rtl_dev_err(hdev, "firmware is for %x but this is a %x",
 			    project_id_to_lmp_subver[i].lmp_subver,
 			    btrtl_dev->ic_info->lmp_subver);
 		return -EINVAL;
@@ -301,7 +322,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 
 	epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
 	if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
-		rtl_dev_err(hdev, "bad EPATCH signature\n");
+		rtl_dev_err(hdev, "bad EPATCH signature");
 		return -EINVAL;
 	}
 
@@ -368,6 +389,8 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 	int frag_len = RTL_FRAG_LEN;
 	int ret = 0;
 	int i;
+	struct sk_buff *skb;
+	struct hci_rp_read_local_version *rp;
 
 	dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
 	if (!dl_cmd)
@@ -378,7 +401,11 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 
 		BT_DBG("download fw (%d/%d)", i, frag_num);
 
+		if (i > 0x7f)
+			dl_cmd->index = (i & 0x7f) + 1;
+		else
 			dl_cmd->index = i;
+
 		if (i == (frag_num - 1)) {
 			dl_cmd->index |= 0x80; /* data end */
 			frag_len = fw_len % RTL_FRAG_LEN;
@@ -389,14 +416,14 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 		skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
 				     HCI_INIT_TIMEOUT);
 		if (IS_ERR(skb)) {
-			rtl_dev_err(hdev, "download fw command failed (%ld)\n",
+			rtl_dev_err(hdev, "download fw command failed (%ld)",
 				    PTR_ERR(skb));
 			ret = -PTR_ERR(skb);
 			goto out;
 		}
 
 		if (skb->len != sizeof(struct rtl_download_response)) {
-			rtl_dev_err(hdev, "download fw event length mismatch\n");
+			rtl_dev_err(hdev, "download fw event length mismatch");
 			kfree_skb(skb);
 			ret = -EIO;
 			goto out;
@@ -406,6 +433,18 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 		data += RTL_FRAG_LEN;
 	}
 
+	skb = btrtl_read_local_version(hdev);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		rtl_dev_err(hdev, "read local version failed");
+		goto out;
+	}
+
+	rp = (struct hci_rp_read_local_version *)skb->data;
+	rtl_dev_info(hdev, "fw version 0x%04x%04x",
+		     __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
+	kfree_skb(skb);
+
 out:
 	kfree(dl_cmd);
 	return ret;
@@ -416,7 +455,7 @@ static int rtl_load_file(struct hci_dev *hdev, const char *name, u8 **buff)
 	const struct firmware *fw;
 	int ret;
 
-	rtl_dev_info(hdev, "rtl: loading %s\n", name);
+	rtl_dev_info(hdev, "loading %s", name);
 	ret = request_firmware(&fw, name, &hdev->dev);
 	if (ret < 0)
 		return ret;
@@ -440,7 +479,7 @@ static int btrtl_setup_rtl8723a(struct hci_dev *hdev,
 	 * (which is only for RTL8723B and newer).
 	 */
 	if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8)) {
-		rtl_dev_err(hdev, "unexpected EPATCH signature!\n");
+		rtl_dev_err(hdev, "unexpected EPATCH signature!");
 		return -EINVAL;
 	}
 
@@ -475,7 +514,7 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
 		fw_data = tbuff;
 	}
 
-	rtl_dev_info(hdev, "cfg_sz %d, total sz %d\n", btrtl_dev->cfg_len, ret);
+	rtl_dev_info(hdev, "cfg_sz %d, total sz %d", btrtl_dev->cfg_len, ret);
 
 	ret = rtl_download_firmware(hdev, fw_data, ret);
 
@@ -484,27 +523,6 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
 	return ret;
 }
 
-static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
-{
-	struct sk_buff *skb;
-
-	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
-			     HCI_INIT_TIMEOUT);
-	if (IS_ERR(skb)) {
-		rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)\n",
-			    PTR_ERR(skb));
-		return skb;
-	}
-
-	if (skb->len != sizeof(struct hci_rp_read_local_version)) {
-		rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch\n");
-		kfree_skb(skb);
-		return ERR_PTR(-EIO);
-	}
-
-	return skb;
-}
-
 void btrtl_free(struct btrtl_device_info *btrtl_dev)
 {
 	kfree(btrtl_dev->fw_data);
@@ -537,7 +555,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 	}
 
 	resp = (struct hci_rp_read_local_version *)skb->data;
-	rtl_dev_info(hdev, "rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x\n",
+	rtl_dev_info(hdev, "examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x",
 		     resp->hci_ver, resp->hci_rev,
 		     resp->lmp_ver, resp->lmp_subver);
 
@@ -550,7 +568,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 					    hdev->bus);
 
 	if (!btrtl_dev->ic_info) {
-		rtl_dev_info(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
+		rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
 			    lmp_subver, hci_rev, hci_ver);
 		return btrtl_dev;
 	}
@@ -564,7 +582,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 	btrtl_dev->fw_len = rtl_load_file(hdev, btrtl_dev->ic_info->fw_name,
 					  &btrtl_dev->fw_data);
 	if (btrtl_dev->fw_len < 0) {
-		rtl_dev_err(hdev, "firmware file %s not found\n",
+		rtl_dev_err(hdev, "firmware file %s not found",
 			    btrtl_dev->ic_info->fw_name);
 		ret = btrtl_dev->fw_len;
 		goto err_free;
@@ -582,7 +600,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 						   &btrtl_dev->cfg_data);
 		if (btrtl_dev->ic_info->config_needed &&
 		    btrtl_dev->cfg_len <= 0) {
-			rtl_dev_err(hdev, "mandatory config file %s not found\n",
+			rtl_dev_err(hdev, "mandatory config file %s not found",
 				    btrtl_dev->ic_info->cfg_name);
 			ret = btrtl_dev->cfg_len;
 			goto err_free;
@@ -608,7 +626,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
 	 * to a different value.
 	 */
 	if (!btrtl_dev->ic_info) {
-		rtl_dev_info(hdev, "rtl: assuming no firmware upload needed\n");
+		rtl_dev_info(hdev, "assuming no firmware upload needed");
 		return 0;
 	}
 
@@ -622,7 +640,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
 	case RTL_ROM_LMP_8822B:
 		return btrtl_setup_rtl8723b(hdev, btrtl_dev);
 	default:
-		rtl_dev_info(hdev, "rtl: assuming no firmware upload needed\n");
+		rtl_dev_info(hdev, "assuming no firmware upload needed");
 		return 0;
 	}
 }
@@ -641,6 +659,11 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
 
 	btrtl_free(btrtl_dev);
 
+	/* Enable controller to do both LE scan and BR/EDR inquiry
+	 * simultaneously.
+	 */
+	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(btrtl_setup_realtek);
@@ -714,18 +737,18 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 
 	total_data_len = btrtl_dev->cfg_len - sizeof(*config);
 	if (total_data_len <= 0) {
-		rtl_dev_warn(hdev, "no config loaded\n");
+		rtl_dev_warn(hdev, "no config loaded");
 		return -EINVAL;
 	}
 
 	config = (struct rtl_vendor_config *)btrtl_dev->cfg_data;
 	if (le32_to_cpu(config->signature) != RTL_CONFIG_MAGIC) {
-		rtl_dev_err(hdev, "invalid config magic\n");
+		rtl_dev_err(hdev, "invalid config magic");
 		return -EINVAL;
 	}
 
 	if (total_data_len < le16_to_cpu(config->total_len)) {
-		rtl_dev_err(hdev, "config is too short\n");
+		rtl_dev_err(hdev, "config is too short");
 		return -EINVAL;
 	}
 
@@ -735,7 +758,7 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 		switch (le16_to_cpu(entry->offset)) {
 		case 0xc:
 			if (entry->len < sizeof(*device_baudrate)) {
-				rtl_dev_err(hdev, "invalid UART config entry\n");
+				rtl_dev_err(hdev, "invalid UART config entry");
 				return -EINVAL;
 			}
 
@@ -752,7 +775,7 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 			break;
 
 		default:
-			rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)\n",
+			rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)",
 				   le16_to_cpu(entry->offset), entry->len);
 			break;
 		};
@@ -761,13 +784,13 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 	}
 
 	if (!found) {
-		rtl_dev_err(hdev, "no UART config entry found\n");
+		rtl_dev_err(hdev, "no UART config entry found");
 		return -ENOENT;
 	}
 
-	rtl_dev_dbg(hdev, "device baudrate = 0x%08x\n", *device_baudrate);
-	rtl_dev_dbg(hdev, "controller baudrate = %u\n", *controller_baudrate);
-	rtl_dev_dbg(hdev, "flow control %d\n", *flow_control);
+	rtl_dev_dbg(hdev, "device baudrate = 0x%08x", *device_baudrate);
+	rtl_dev_dbg(hdev, "controller baudrate = %u", *controller_baudrate);
+	rtl_dev_dbg(hdev, "flow control %d", *flow_control);
 
 	return 0;
 }

drivers/bluetooth/btusb.c

@@ -435,6 +435,7 @@ static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 #define BTUSB_OOB_WAKE_ENABLED	11
 #define BTUSB_HW_RESET_ACTIVE	12
 #define BTUSB_TX_WAIT_VND_EVT	13
+#define BTUSB_WAKEUP_DISABLE	14
 
 struct btusb_data {
 	struct hci_dev       *hdev;
@@ -523,6 +524,36 @@ static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 	gpiod_set_value_cansleep(reset_gpio, 0);
 }
 
+static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	struct gpio_desc *reset_gpio = data->reset_gpio;
+
+	if (++data->cmd_timeout_cnt < 5)
+		return;
+
+	if (!reset_gpio) {
+		bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
+		return;
+	}
+
+	/* Toggle the hard reset line. The Realtek device is going to
+	 * yank itself off the USB and then replug. The cleanup is handled
+	 * correctly on the way out (standard USB disconnect), and the new
+	 * device is detected cleanly and bound to the driver again like
+	 * it should be.
+	 */
+	if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+		bt_dev_err(hdev, "last reset failed? Not resetting again");
+		return;
+	}
+
+	bt_dev_err(hdev, "Reset Realtek device via gpio");
+	gpiod_set_value_cansleep(reset_gpio, 0);
+	msleep(200);
+	gpiod_set_value_cansleep(reset_gpio, 1);
+}
+
 static inline void btusb_free_frags(struct btusb_data *data)
 {
 	unsigned long flags;
@@ -1175,6 +1206,13 @@ static int btusb_open(struct hci_dev *hdev)
 	 */
 	device_wakeup_enable(&data->udev->dev);
 
+	/* Disable device remote wakeup when host is suspended
+	 * For Realtek chips, global suspend without
+	 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
+	 */
+	if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
+		device_wakeup_disable(&data->udev->dev);
+
 	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 		goto done;
 
@@ -1238,6 +1276,11 @@ static int btusb_close(struct hci_dev *hdev)
 		goto failed;
 
 	data->intf->needs_remote_wakeup = 0;
+
+	/* Enable remote wake up for auto-suspend */
+	if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
+		data->intf->needs_remote_wakeup = 1;
+
 	device_wakeup_disable(&data->udev->dev);
 	usb_autopm_put_interface(data->intf);
 
@@ -3770,12 +3813,13 @@ static int btusb_probe(struct usb_interface *intf,
 	if (id->driver_info & BTUSB_REALTEK) {
 		hdev->setup = btrtl_setup_realtek;
 		hdev->shutdown = btrtl_shutdown_realtek;
+		hdev->cmd_timeout = btusb_rtl_cmd_timeout;
 
-		/* Realtek devices lose their updated firmware over suspend,
-		 * but the USB hub doesn't notice any status change.
-		 * Explicitly request a device reset on resume.
+		/* Realtek devices lose their updated firmware over global
+		 * suspend that means host doesn't send SET_FEATURE
+		 * (DEVICE_REMOTE_WAKEUP)
 		 */
-		interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
+		set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
 	}
 #endif
 
@@ -3949,6 +3993,19 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
 		enable_irq(data->oob_wake_irq);
 	}
 
+	/* For global suspend, Realtek devices lose the loaded fw
+	 * in them. But for autosuspend, firmware should remain.
+	 * Actually, it depends on whether the usb host sends
+	 * set feature (enable wakeup) or not.
+	 */
+	if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
+		if (PMSG_IS_AUTO(message) &&
+		    device_can_wakeup(&data->udev->dev))
+			data->udev->do_remote_wakeup = 1;
+		else if (!PMSG_IS_AUTO(message))
+			data->udev->reset_resume = 1;
+	}
+
 	return 0;
 }
 

drivers/bluetooth/hci_bcm.c

@@ -260,7 +260,7 @@ static int bcm_gpio_set_power(struct bcm_device *dev, bool powered)
 	}
 
 	/* wait for device to power on and come out of reset */
-	usleep_range(10000, 20000);
+	usleep_range(100000, 120000);
 
 	dev->res_enabled = powered;
 
@@ -824,6 +824,21 @@ static int bcm_resume(struct device *dev)
 }
 #endif
 
+/* Some firmware reports an IRQ which does not work (wrong pin in fw table?) */
+static const struct dmi_system_id bcm_broken_irq_dmi_table[] = {
+	{
+		.ident = "Meegopad T08",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR,
+					"To be filled by OEM."),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+			DMI_EXACT_MATCH(DMI_BOARD_VERSION, "V1.1"),
+		},
+	},
+	{ }
+};
+
+#ifdef CONFIG_ACPI
 static const struct acpi_gpio_params first_gpio = { 0, 0, false };
 static const struct acpi_gpio_params second_gpio = { 1, 0, false };
 static const struct acpi_gpio_params third_gpio = { 2, 0, false };
@@ -842,21 +857,6 @@ static const struct acpi_gpio_mapping acpi_bcm_int_first_gpios[] = {
 	{ },
 };
 
-/* Some firmware reports an IRQ which does not work (wrong pin in fw table?) */
-static const struct dmi_system_id bcm_broken_irq_dmi_table[] = {
-	{
-		.ident = "Meegopad T08",
-		.matches = {
-			DMI_EXACT_MATCH(DMI_BOARD_VENDOR,
-					"To be filled by OEM."),
-			DMI_EXACT_MATCH(DMI_BOARD_NAME, "T3 MRD"),
-			DMI_EXACT_MATCH(DMI_BOARD_VERSION, "V1.1"),
-		},
-	},
-	{ }
-};
-
-#ifdef CONFIG_ACPI
 static int bcm_resource(struct acpi_resource *ares, void *data)
 {
 	struct bcm_device *dev = data;
@@ -1419,6 +1419,7 @@ static void bcm_serdev_remove(struct serdev_device *serdev)
 #ifdef CONFIG_OF
 static const struct of_device_id bcm_bluetooth_of_match[] = {
 	{ .compatible = "brcm,bcm20702a1" },
+	{ .compatible = "brcm,bcm4345c5" },
 	{ .compatible = "brcm,bcm4330-bt" },
 	{ .compatible = "brcm,bcm43438-bt" },
 	{ },

drivers/bluetooth/hci_qca.c

@@ -502,26 +502,7 @@ static int qca_open(struct hci_uart *hu)
 	qca->tx_ibs_state = HCI_IBS_TX_ASLEEP;
 	qca->rx_ibs_state = HCI_IBS_RX_ASLEEP;
 
-	/* clocks actually on, but we start votes off */
-	qca->tx_vote = false;
-	qca->rx_vote = false;
-	qca->flags = 0;
-
-	qca->ibs_sent_wacks = 0;
-	qca->ibs_sent_slps = 0;
-	qca->ibs_sent_wakes = 0;
-	qca->ibs_recv_wacks = 0;
-	qca->ibs_recv_slps = 0;
-	qca->ibs_recv_wakes = 0;
 	qca->vote_last_jif = jiffies;
-	qca->vote_on_ms = 0;
-	qca->vote_off_ms = 0;
-	qca->votes_on = 0;
-	qca->votes_off = 0;
-	qca->tx_votes_on = 0;
-	qca->tx_votes_off = 0;
-	qca->rx_votes_on = 0;
-	qca->rx_votes_off = 0;
 
 	hu->priv = qca;
 
@@ -1261,6 +1242,11 @@ static int qca_setup(struct hci_uart *hu)
 	/* Patch downloading has to be done without IBS mode */
 	clear_bit(QCA_IBS_ENABLED, &qca->flags);
 
+	/* Enable controller to do both LE scan and BR/EDR inquiry
+	 * simultaneously.
+	 */
+	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
 	if (qca_is_wcn399x(soc_type)) {
 		bt_dev_info(hdev, "setting up wcn3990");
 
@@ -1326,7 +1312,7 @@ static int qca_setup(struct hci_uart *hu)
 	return ret;
 }
 
-static struct hci_uart_proto qca_proto = {
+static const struct hci_uart_proto qca_proto = {
 	.id		= HCI_UART_QCA,
 	.name		= "QCA",
 	.manufacturer	= 29,
@@ -1389,6 +1375,8 @@ static int qca_power_off(struct hci_dev *hdev)
 	/* Perform pre shutdown command */
 	qca_send_pre_shutdown_cmd(hdev);
 
+	usleep_range(8000, 10000);
+
 	qca_power_shutdown(hu);
 	return 0;
 }

drivers/hid/hid-microsoft.c

@@ -303,7 +303,7 @@ static void ms_ff_worker(struct work_struct *work)
 	r->magnitude[MAGNITUDE_WEAK] = ms->weak;     /* right actuator */
 
 	ret = hid_hw_output_report(hdev, (__u8 *)r, sizeof(*r));
-	if (ret)
+	if (ret < 0)
 		hid_warn(hdev, "failed to send FF report\n");
 }
 

include/net/bluetooth/hci_core.h

@@ -1517,6 +1517,8 @@ void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
 #define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
 #define DISCOV_BREDR_INQUIRY_LEN	0x08
 #define DISCOV_LE_RESTART_DELAY		msecs_to_jiffies(200)	/* msec */
+#define DISCOV_LE_FAST_ADV_INT_MIN     100     /* msec */
+#define DISCOV_LE_FAST_ADV_INT_MAX     150     /* msec */
 
 void mgmt_fill_version_info(void *ver);
 int mgmt_new_settings(struct hci_dev *hdev);

net/bluetooth/6lowpan.c

@@ -583,7 +583,7 @@ static const struct net_device_ops netdev_ops = {
 	.ndo_start_xmit		= bt_xmit,
 };
 
-static struct header_ops header_ops = {
+static const struct header_ops header_ops = {
 	.create	= header_create,
 };
 

net/bluetooth/hci_request.c

@@ -1054,6 +1054,7 @@ void __hci_req_enable_advertising(struct hci_request *req)
 	struct hci_cp_le_set_adv_param cp;
 	u8 own_addr_type, enable = 0x01;
 	bool connectable;
+	u16 adv_min_interval, adv_max_interval;
 	u32 flags;
 
 	flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance);
@@ -1087,16 +1088,30 @@ void __hci_req_enable_advertising(struct hci_request *req)
 		return;
 
 	memset(&cp, 0, sizeof(cp));
-	cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
-	cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
 
-	if (connectable)
+	if (connectable) {
 		cp.type = LE_ADV_IND;
-	else if (get_cur_adv_instance_scan_rsp_len(hdev))
+
+		adv_min_interval = hdev->le_adv_min_interval;
+		adv_max_interval = hdev->le_adv_max_interval;
+	} else {
+		if (get_cur_adv_instance_scan_rsp_len(hdev))
 			cp.type = LE_ADV_SCAN_IND;
 		else
 			cp.type = LE_ADV_NONCONN_IND;
 
+		if (!hci_dev_test_flag(hdev, HCI_DISCOVERABLE) ||
+		    hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) {
+			adv_min_interval = DISCOV_LE_FAST_ADV_INT_MIN;
+			adv_max_interval = DISCOV_LE_FAST_ADV_INT_MAX;
+		} else {
+			adv_min_interval = hdev->le_adv_min_interval;
+			adv_max_interval = hdev->le_adv_max_interval;
+		}
+	}
+
+	cp.min_interval = cpu_to_le16(adv_min_interval);
+	cp.max_interval = cpu_to_le16(adv_max_interval);
 	cp.own_address_type = own_addr_type;
 	cp.channel_map = hdev->le_adv_channel_map;
 

net/bluetooth/hidp/core.c

@@ -267,7 +267,7 @@ static int hidp_get_raw_report(struct hid_device *hid,
 	set_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
 	data[0] = report_number;
 	ret = hidp_send_ctrl_message(session, report_type, data, 1);
-	if (ret)
+	if (ret < 0)
 		goto err;
 
 	/* Wait for the return of the report. The returned report
@@ -343,7 +343,7 @@ static int hidp_set_raw_report(struct hid_device *hid, unsigned char reportnum,
 	data[0] = reportnum;
 	set_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
 	ret = hidp_send_ctrl_message(session, report_type, data, count);
-	if (ret)
+	if (ret < 0)
 		goto err;
 
 	/* Wait for the ACK from the device. */

net/bluetooth/mgmt.c

@@ -2588,7 +2588,6 @@ static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
 {
 	struct mgmt_rp_get_connections *rp;
 	struct hci_conn *c;
-	size_t rp_len;
 	int err;
 	u16 i;
 
@@ -2608,8 +2607,7 @@ static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
 			i++;
 	}
 
-	rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
-	rp = kmalloc(rp_len, GFP_KERNEL);
+	rp = kmalloc(struct_size(rp, addr, i), GFP_KERNEL);
 	if (!rp) {
 		err = -ENOMEM;
 		goto unlock;
@@ -2629,10 +2627,8 @@ static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
 	rp->conn_count = cpu_to_le16(i);
 
 	/* Recalculate length in case of filtered SCO connections, etc */
-	rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
-
 	err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
-				rp_len);
+				struct_size(rp, addr, i));
 
 	kfree(rp);